EP0647338B1 - Tastatur-aufbau - Google Patents

Tastatur-aufbau Download PDF

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Publication number
EP0647338B1
EP0647338B1 EP93913421A EP93913421A EP0647338B1 EP 0647338 B1 EP0647338 B1 EP 0647338B1 EP 93913421 A EP93913421 A EP 93913421A EP 93913421 A EP93913421 A EP 93913421A EP 0647338 B1 EP0647338 B1 EP 0647338B1
Authority
EP
European Patent Office
Prior art keywords
numeric
keyboard assembly
keyboard
data
input data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93913421A
Other languages
English (en)
French (fr)
Other versions
EP0647338A1 (de
Inventor
Timothy Simon Lyons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB929213352A external-priority patent/GB9213352D0/en
Application filed by Individual filed Critical Individual
Publication of EP0647338A1 publication Critical patent/EP0647338A1/de
Application granted granted Critical
Publication of EP0647338B1 publication Critical patent/EP0647338B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

Definitions

  • the present invention relates to a keyboard assembly.
  • numeric keypads in which numeric keys are grouped together.
  • numbers which are to be entered are often the results of calculations and it is inconvenient for users to have to copy such results from, say, a calculator into the computer - even using a numeric keypad. Also, copying such results is a potential source of error.
  • UK Patent Application 2249200A describes a keyboard assembly for connection by wire in series between a host computer and the host computer's main keyboard.
  • One or other of the keyboard assembly and the main keyboard is operable at anyone time to allow numeric data to be input to the central processing unit of the host computer.
  • the keyboard assembly and the main keyboard cannot be operated at the same time; and the keyboard assembly cannot operate as a numeric keypad, wherein each keypress on the keyboard assembly is transmitted as keyboard input to the host computer.
  • a keyboard assembly for transmitting data to a central processing unit remote from the keyboard assembly, the keyboard assembly comprising: a plurality of keys for accepting numeric input data and command input data from a user; numeric processing means for locally processing the numeric input data in dependence on the command input data to produce numeric output data; display means for displaying the numeric input data and the output data; interface means for transmitting the output data as keyboard data to the remote central processing unit; and mode selection means for allowing a user to select between a first mode of operation of the keyboard assembly in which output is disabled from being transmitted to the remote central processing unit, a second mode of operation in which the numeric processing means produces numeric output data whose numeric value is the same as the value of the numeric input data, and a third mode of operation in which in response to a transmit signal supplied as command input data to the numeric processing means the numeric value displayed by the display means is transmitted to the remote central processing unit.
  • CPU central processing unit
  • the interface means is preferably arranged so as to allow the CPU to accept keyboard input data from a "main" keyboard whilst the keyboard assembly is operating. Most preferably the main keyboard and the keyboard assembly are connected in parallel to the CPU.
  • the main keyboard suitably including alphabetic keys, is for providing second keyboard input data to the CPU. It is suitably a keyboard supplied with or as part of the host computer and it may be integral within the CPU (as in a laptop or notebook computer) or separate and connected via a cable, as with most desk-top personal computers.
  • the CPU (the processor section of the host computer which normally houses the memory, mass storage devices and ports for connection of peripheral devices such as keyboard, screen and printers) is suitably part of a host computer, for example a personal computer, mainframe, minicomputer, laptop or notebook situated remotely from the keyboard assembly and is suitably connected to the keyboard assembly by communicating means.
  • the communicating means is preferably an indirect wireless link such as a low-power radio link or infrared optical link as shown in Figure 2.
  • the communicating means may be a connecting lead as shown in Figure 1.
  • the host's main keyboard and the keyboard assembly may conveniently be placed so that they can both be used by a user for passing data to the CPU, as indicated in Figures 1 and 2. Both the keyboard assembly and the main keyboard may operate independently of each other and may be left permanently connected to the host computer's CPU without the one interfering with the operation of the other.
  • the keyboard input data is suitably in such a form that it may be accepted by the CPU as input from a keyboard, defining input characters.
  • the keyboard assembly suitably has no alphabetic keys.
  • the display means is suitably for locally displaying the numeric input data and the output data.
  • the processing means is suitably capable of processing the numeric input data arithmetically in response to the command input data to produce the numeric output data, for example by functions such as addition, subtraction, multiplication and division.
  • the mode selection means suitably comprises input means such as a key or switch providing input to processing means in the keyboard assembly which controls the interface means and the numeric processing means as necessary in each mode.
  • the display means suitably includes status means for providing an indication of the mode in which the keyboard assembly is operating.
  • the keyboard assembly has an outer case 1 housing a display 2 and a keypad 3 comprising numeric keys 4, command keys 5 and control keys 6.
  • the keyboard assembly is connected by connecting link 7 (which may be an electrical cable making a physical connection, or a wireless link, such as a radio link or optical or infrared link) to a host computer 8.
  • the case 1 contains a processor 9 for accepting input data 10 from the keypad (in the form of numeric input signals from numeric keys 4 and command input signals from the command keys 5 and control keys 6), processing the input data to produce output data, and transmitting the output data to the display 2 (as indicated at 11) or via interface 12 (as indicated at 13) and connecting link 7 to the host computer 8.
  • the keyboard assembly may be used to perform calculations on the numeric input data in dependence on the command input data and the results of those calculations may be displayed by the display 2 and/or passed to the host computer 8 as keyboard input signals. Alternatively, the input data may be passed directly as keyboard input signals to the host computer without calculations being performed on it.
  • the host computer has a main keyboard 14 which can also be used to pass the keyboard input signals to the host computer via link 15.
  • the keypad 3 has 11 numeric keys 4 (representing the digits from 0 to 9 and a decimal point) by which a user may enter numeric data in the same way as data is entered using the numeric keys of a conventional keyboard or calculator; and 9 command keys 5, by which a user may enter command data in the same way as command data is conventionally entered into a calculator.
  • An "AC" key is provided to clear all registers in the processor and to cancel any ongoing calculation at the time the key is pressed.
  • control keys 6 which allow the user to switch the keyboard assembly on and off (shown as the "on/off” key in Figure 3), to select the mode it is to operate in (shown as the "MODE” key in Figure 3), to send the output data as displayed on the display 2 to host computer 8 via interface 12 (shown as the "ENTER” key 16 in Figure 3), and to clear the last entry (shown as the "clear” key in Figure 3).
  • a memory is provided for storing and recalling numbers, controlled by 4 keys which allow data to be added to or subtracted from memory, to display the contents of memory on the display 2 or to clear the contents of memory (keys M+, M-, MR and MC respectively). The contents of the memory remain unchanged when the "AC" key is pressed.
  • the processor 9 is in the form of one or more integrated circuits which perform arithmetic calculations as necessary and produce output in a suitable form for driving the display 2 and the interface 12.
  • the interface and processor may be physically contained within a single purpose-designed integrated circuit, such as a Micro-Controller chip, which has registers and ports suitable for interfacing with both display and serial communications systems.
  • the display 2 is a Liquid Crystal Display (LCD) or combined LCD and decoder sub-assembly having a numeric portion, for displaying the numeric input or output data passed to it by the processor 9, and a status portion for displaying the current mode of the keyboard assembly.
  • LCD Liquid Crystal Display
  • decoder sub-assembly having a numeric portion, for displaying the numeric input or output data passed to it by the processor 9, and a status portion for displaying the current mode of the keyboard assembly.
  • the interface 12 may be a Universal Asynchronous Receiver Transmitter (UART) or suitable functional equivalent processor which accepts data from the processor 9 and passes it to the host computer 8 in a form acceptable to the host computer as keyboard input.
  • UART Universal Asynchronous Receiver Transmitter
  • suitable functional equivalent processor which accepts data from the processor 9 and passes it to the host computer 8 in a form acceptable to the host computer as keyboard input.
  • a user may either use the host computer's main keyboard 14 or the keyboard assembly, with the same effect.
  • Output data from the interface 12 to the host computer is synchronised by the interface with the host computer's strobe signal, or other synchronizing protocol.
  • the keyboard assembly is connected to the host computer in such a way that keyboard input data from the keyboard assembly is accepted by the host computer in the same way as input from its own main keyboard 14 but so that the host computer's main keyboard 14 can function as normal in sending data to the host computer.
  • the interface 12 is sent to the Apple Desktop Bus (ADB) port of the host computer; where the host computer is a PC-type computer the data from the interface 12 is sent to an external keyboard port of the host computer.
  • ADB Apple Desktop Bus
  • the keyboard assembly includes a "MODE" key 16 with which a user may select any one of three modes in which the keyboard assembly is to operate. Data is routed through the keyboard assembly and processed by the processor 9 in dependence on which mode is currently selected.
  • a first mode illustrated in Figure 5, the keyboard assembly functions generally as does a conventional numeric calculator. Input data 10 from the keypad 3 passes to the processor 9 which processes the data in dependence on input data from the command keys 5 to produce output data 11. This is passed to the display 2 where it is displayed. In this first mode, all calculations and key-presses made at the keyboard assembly are disabled from reaching interface 12 and hence cannot be sent to host computer 8 via connecting link 7.
  • keyboard assembly functions as an extension of the main keyboard 14 of the host computer 8.
  • Input data 10 from the keypad 3 is passed, content unaltered, by the processor 9 as output data 13 to interface 12 from which it is passed to the host computer 8 as keyboard input signals, i.e. in the same form as input from the host computer's own main keyboard 14 would be passed to the host computer.
  • the keyboard assembly functions generally as in the first mode.
  • data representing the keystrokes necessary to type using the host computer's main keyboard 14
  • the number currently displayed on the display 2 is passed by the processor 9 to the interface 12 and from there to the host computer 8 as keyboard input data.
  • Data representing the digits of the displayed number are passed in series, from most significant to least significant digit, by the processor 9 to the interface 12 and from there to the host and from there to the host computer 8 as keyboard input signals. For example, if the number "347" were displayed on the display 2 the processor 9 would cause the interface 12 to pass data representing the keystrokes "3", "4", "7" in that order.
  • keyboard input signals from the main keyboard 14 can be passed to the host computer 8 via lead 15.
  • the status portion 18 of the display 2 displays an indication of the mode in which the keyboard assembly is currently operating, for example by showing "CALC” for the first mode, "Pad” for the second mode and "enter” for the third mode.
  • LCD 7-segment LCD display.
  • Other types of LCD may be used which would allow alphanumeric display with even greater clarity, or a customized LCD could be created which could indicate the keyboard assembly's current mode much as some current calculators display "M" to indicate the presence of numbers held in memory, and other such modal information.
  • EPROM Erasable Programmable Read Only Memory
  • the numeric portion 19 of the display 2 operates in the first and third modes in the same way as the display of a conventional calculator: numbers are displayed as they are entered at the keypad and the result of a calculation is displayed after a calculation has been performed.
  • the numeric portion of the display may be kept blank.
  • the numeric portion of the display could provide a visual indication of the key presses on the keypad.
  • Mode Selection of mode is achieved by pressing control key 16, known as the "mode" key. Pressing this key switches the keyboard assembly into each of its three modes in rotation. However, the keyboard assembly can be prevented from being set into its second or third modes if it is not connected to a host computer, by electronically testing for the presence of a strobe signal from a host computer when the second or third mode is to be selected.
  • the keyboard assembly may be powered by one or more AA or AAA-type battery cells, a high capacity button cell or a high power solar cell.
  • a rechargeable battery such as a nickel-cadmium or nickel-metal-hydride battery which may be recharged from the voltages present in the connecting cable, which are supplied by the host computer. All circuitry within the keyboard assembly uses low-power CMOS chip technology so as to minimise power drain from its own batteries, or from the host computer.
  • the keyboard assembly is capable of entering a "sleep” state, to save power, in which it merely monitors signals from the keypad and checks for the presence of a strobe signal from a host computer at the interface 12.
  • the keyboard assembly enters the "sleep” state in response to no key having been pressed for a predetermined time (for example 5 minutes) provided no strobe signal is being received by the interface 12.
  • the assembly enters its "operational" state from its "sleep” state in response to the presence of a strobe signal at the interface 12 or to the pressing of a key on the keypad 3, thus allowing the keypad assembly to automatically “wake” when the host computer is switched on.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)

Claims (7)

  1. Tastaturanordnung (1) zum Übermitteln von Daten zu einer entfernt angeordneten zentralen Recheneinheit (18), mit:
    einer Vielzahl von Tasten (3,4,5) zum Aufnehmen von numerischen Eingabedaten und Befehlseingabedaten von einem Benutzer;
    numerischen Verarbeitungsmitteln (9) zum lokalen Verarbeiten der numerischen Eingabedaten in Abhängigkeit von den Befehlseingabedaten, um numerische Ausgabedaten zu erzeugen;
    Anzeigemittel (2) zum Anzeigen der numerischen Eingabedaten und der Ausgabedaten;
    Schnittstellenmittel (12) zum Übertragen der Ausgangsdaten als Tastaturdaten zu der entfernt angeordneten zentralen Verarbeitungseinheit; und
    Modus-Wahlmitteln (6,16), um es dem Benutzer zu ermöglichen, zwischen einem ersten Betriebsmodus der Tastaturanordnung, in der Ausgabedaten nicht zu der beabstandet angeordneten zentralen Rechnereinheit übertragen werden können, und einem zweiten Betriebsmodus zu unterscheiden, in dem die numerischen Rechenmittel numerische Ausgangsdaten erzeugen, deren numerische Werte gleich den Werten der numerischen Eingangsdaten sind, und einem dritten Betriebsmodus, in dem als Antwort auf ein Übergabsignal, daß als Befehlseingangsdatum an die numerischen Rechenmittel gegeben wird, der numerische Wert, der durch das Anzeigemittel angezeigt wird, zu der beabstandet angeordneten zentralen Recheneinheit übermittelt wird.
  2. Tastaturanordnung nach Anspruch 1, wobei die Schnittstellenmittel so ausgebildet sind, daß es einer Haupttastatur (14) möglich ist, Tastaturdaten an die zentrale Recheneinheit zu übermitteln, während die Tastaturanordnung in Betrieb ist.
  3. Tastaturanordnung nach Anspruch 2, wobei die Tastaturanordnung und die Haupttastatur prallel mit der zentralen Recheneinheit verbunden sind.
  4. Tastaturanordnung nach einem der vorhergehenden Ansprüche, wobei die Tastaturanordnung mit der zentralen Recheneinheit über eine drahtlose Verbindung verbunden ist.
  5. Tastaturanordnung nach Anspruch 4, wobei die drahtlose Verbindung eine optische Verbindung ist.
  6. Tastaturanordnung nach Anspruch 5, wobei die drahtlose Verbindung eine Infrarot-Verbindung ist.
  7. Tastaturanordnung nach Anspruch 4, wobei die drahtlose Verbindung eine Funkverbindung ist.
EP93913421A 1992-06-24 1993-06-24 Tastatur-aufbau Expired - Lifetime EP0647338B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB929213352A GB9213352D0 (en) 1992-06-24 1992-06-24 A keyboard assembly
GB9213352 1992-06-24
GB929225434A GB9225434D0 (en) 1992-06-24 1992-12-04 A keyboard assembly
GB9225434 1992-12-04
PCT/GB1993/001324 WO1994000810A1 (en) 1992-06-24 1993-06-24 A keyboard assembly

Publications (2)

Publication Number Publication Date
EP0647338A1 EP0647338A1 (de) 1995-04-12
EP0647338B1 true EP0647338B1 (de) 1996-06-05

Family

ID=26301115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93913421A Expired - Lifetime EP0647338B1 (de) 1992-06-24 1993-06-24 Tastatur-aufbau

Country Status (3)

Country Link
EP (1) EP0647338B1 (de)
DE (1) DE69303022T2 (de)
WO (1) WO1994000810A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7137696A (en) * 1995-10-02 1997-04-28 Formula One Auto Centres Limited A combined computer keyboard and calculator
ATE366418T1 (de) 1996-04-25 2007-07-15 Bioarray Solutions Ltd Licht-regulierte, elektrokinetische zusammensetzung von partikeln an oberflächen
US9709559B2 (en) 2000-06-21 2017-07-18 Bioarray Solutions, Ltd. Multianalyte molecular analysis using application-specific random particle arrays
TW571221B (en) * 2000-06-30 2004-01-11 Intel Corp Method and apparatus for using an input device of a first computer system to wirelessly enter data into a second computer system
WO2002025421A1 (en) * 2000-09-20 2002-03-28 Park Young Ki User interface for multimode
GB0027957D0 (en) * 2000-11-16 2001-01-03 Hudson David Keyboard display
US7262063B2 (en) 2001-06-21 2007-08-28 Bio Array Solutions, Ltd. Directed assembly of functional heterostructures
US20040002073A1 (en) 2001-10-15 2004-01-01 Li Alice Xiang Multiplexed analysis of polymorphic loci by concurrent interrogation and enzyme-mediated detection
EP1391805A1 (de) * 2002-08-14 2004-02-25 Cherry GmbH Benutzerschnittstellengerät
AU2003298655A1 (en) 2002-11-15 2004-06-15 Bioarray Solutions, Ltd. Analysis, secure access to, and transmission of array images
PT1664722E (pt) 2003-09-22 2011-12-28 Bioarray Solutions Ltd Polielectrólito imobilizado à superfície com grupos funcionais múltiplos capazes de se ligarem covalentemente às biomoléculas
US7563569B2 (en) 2003-10-28 2009-07-21 Michael Seul Optimization of gene expression analysis using immobilized capture probes
US7848889B2 (en) 2004-08-02 2010-12-07 Bioarray Solutions, Ltd. Automated analysis of multiplexed probe-target interaction patterns: pattern matching and allele identification
DE102009050373B4 (de) * 2009-10-22 2015-03-26 Terra-Fernwirktechnik Gmbh Funksteuerung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249200A (en) * 1990-10-26 1992-04-29 Lei Chuan Wu Structure of calculator for on-line operation with computer

Also Published As

Publication number Publication date
DE69303022D1 (de) 1996-07-11
EP0647338A1 (de) 1995-04-12
WO1994000810A1 (en) 1994-01-06
DE69303022T2 (de) 1997-01-23

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